** Shares of drugmaker Mirati Therapeutics MRTX.O fall
~2.6% to $58.65 premarket
** Bristol-Myers Squibb BMY.N said on Sunday it will
acquire Mirati for up to $5.8 billion
** The deal helps BMY diversify oncology business and add
drugs it hopes can help offset expected revenue loss from patent
expirations later this decade
** BMY said it will buy Mirati for $58 per share in cash, or
around $4.8 billion and a non-tradeable contingent value right
representing an additional $1 billion of value opportunity
** Bristol's purchase comes when Mirati's shares are trading
cheap; shares hit a 52-week high of $101.3 apiece in November;
they closed at $60.2 on Friday
** Up to last close, MRTX shares up ~33%
(Reporting by Mariam Sunny in Bengaluru)
((Mariam.ESunny@thomsonreuters.com;))